2010 Pre-Upgrade Check

#Copy this text into a text document and save it as InfoScript.ps1

#Please login to your SharePoint server using an account that has permissions to run PowerShell Commands.
# Place the file InfoScript.ps1 into a directory on the server that hosts SharePoint Central Administration.
# Open the SharePoint 2010 Management Shell and type:
# c:[directory where you placed the script]InfoScript2010.ps1 | Out-File -width 200 c:InfoOutput.txt
# The "Out-File -width 200" part of the command is to make the output wider to fit more information on each line
# Once the script has completed, please forward the InfoOutput.txt file to your Rackspace contact via email.
#|
#

I had a bit of trouble copying the above code. I finally just copied everything on the page and deleted all the non-powershell.
When I ran this the first time, it ran a while then prompted me to continue and when I said y , the script began to give me access errors.
I was logged on with an account in the farm admins group. However, when I ran the powershell console as sa_farm itself, then the script ran without errors.
Thank you for the script.

Are there suggestions for what to look at in the generated output as potential problems when planning to move to SP 2013? I am not certain what some of the solutions which only have a guid are, nor am I certain what features or templates are potential problems.